An oxide of iron is 77.73% iron by mass; the rest is oxygen. Enter the empirical formula of this compound.

Q: Illustrate the strategy for determining the empirical formula?

A: The empirical formula is the basic formula of any compound.

Q: An oxide of iron is 72.36% iron by mass; the rest is oxygen. Enter the empirical formula of this…

A: Empirical formula refers to the formula of a compound in which the elements are present in the…

Q: Iron ore is impure, Fe2O3. When Fe2O3 is heated with an excess of carbon (coke), metallic iron and…

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Q: Acetylene gas is 92.3% carbon and 7.7% hydrogen (by mass), and its miler mass is 26 g/mol. What is…

A: A numerical problem based on molecular formula determination, which is to be accomplished.

Q: Hydroxylamine contains 42.41 % N and 9.15% H by mass, with the remainder being oxygen. Determine its…

A: The empirical formula can be defined as a chemical formula which gives the proportion of all the…

Q: A dark brown binary compound contains oxygen and ametal. It is 13.38% oxygen by mass. Heating it…

A: SOLUTION: Step 1: (a). The mass of the metal = 1g. The mass of oxygen in each metal M1, M2, M3 are…

Q: How many formula units of MgBr, are in 18.91 g?

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Q: Measurements show that unknown compound X has the following composition: element mass % nitrogen…

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Q: Determination of a chemical formula, mass of crucible is 14.9234g, crucible + hydrated sample is…

A: Given  Mass of Crucible = 14.9234  Mass of hydrated sample = 1.6618 gram Mass of crucible + Mass of…

Q: What information must a chemist obtain in order todetermine the empirical formula of an…

A: An empirical formula is the simplest chemical formula of a compound that gives the proportions of…

Q: calculate the percent of water in the copper (II) sulfate n hydrate by mass. Pentahydrate mass=…

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Q: How many conversions are needed to go from mass (g) of the given to Mole (Y) of the find ?

A: We have been asked to find the no. Of steps needed to go from mass to mole of a compound.

Q: C. If we desired to make 34.00g of Copper(1) Hydroxide, how many grams of Copper(11) Chloride would…

A: Given :-  Mass of  Copper(II) hydroxide, Cu(OH)2 = 34.00 g  Mass of  Copper(II) chloride, CuCl2 = ?…

Q: The empirical formula of a compound is CH. If themolar mass of this compound is about 78 g, what is…

A: Empirical formula is the simplest ratio of the elements in a compound whereas molecular formula is…

Q: Combustion of a 1.505 g sample of thiophene, a carbon–hydrogen–sulfur compound,yields 3.149 g 0.645…

A: Thiophene is composed of carbon, hydrogen, and sulfur. On combustion, it will give carbon dioxide,…

Q: The percent composition by mass of an unknown chlorinated hydrocarbon was found to be 37.83% C,…

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Q: A molecule is found to contain 47.35% by mass C, 10.60% by mass H, and 42.05% by mass O. What is the…

A: The solution to the empirical formula of the compound is attached below.

Q: A white oxide of tungsten is 79.2976% tungsten by mass. A blue tungsten oxide also contains…

A: Let the mass of the white tungsten oxide and the blue tungsten oxide be equal to 100 g. Mass of…

Q: I am so lost on how to solve this I've read the explanation but still can not get it. Looking for…

A: Express each element in grams. Consider the compound to be 100 g.  Thus, the mass of iron is 69.9 g…

Q: Describe the procedure for interconverting mass and number of formula units?

A: Formula unit is determined for the ionic compound as the number of cations and anions present in the…

Q: A Chlorin oxide is 59.7 % by mass CI. What is the empirical ?formula of the oxide

A: Here i have mentioned the empirical formula

Q: e the maximum mass of water that could be produced by the chemical reaction. Be

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Q: What is the percent by mass N in Magnesium Nitrate?

A: Atomic mass of N =  14 g mol-1 Molar mass of Magnesium Nitrate (Mg(NO3)2) = 148.3 g mol-1

Q: Which of the following is incorrect: Assay is the process of determining how much of a given sample…

A: We will choose the incorrect answer from the following statement.

Q: What is the mass percentage of C in morphine, C,,H1,NO,? Provide an answer to two decimal places.

A: We have many molecules around us. They all are composed of different elements and have different…

Q: Analysis of a compound showed that it contained 20% hydrogen atoms and 80% carbon atoms by mass.…

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Q: the percentage purity of the potassium cyanide.

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Q: Writing Empirical Formulas from Chemical Formulas

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Q: A sample of a pure compund contains 3.04g of nitrogen and 6.94 g of oxygen. The molar mass of this…

A: Since the compound is having only N and O  Hence assuming the compound to be having empirical…

Q: Given the following data is collecte din a laboratory experiment. Calculated the empirical formula…

A: Given that,  Amount of copper wire = 1.596 g Moles of copper in copper wire = 1.596 g/63.546 g/mol =…

Q: A binary compound of carbon and hydrogen has the following percentage composition: 82. 66% carbon,…

A: Given a binary compound of carbon and hydrogen. Carbon % = 82.66 %Hydrogen % = 17.34 %

Q: A student, Ken, is given a mixture containing two nitrate compounds. The mixture includes NaNO, and…

A: With datas given  With molar mass of NaNO3, Ca(NO3)2 ,NO3 known mass percentage of NaNO3 is done…

Q: Measurements show that unknown compound X has the following composition: element mass % zinc 75.5%…

A: Given‐Unknown compound X has 75.5% Zn  and 24.7% O,then,Zn-75.5/65.4=1.154O-24.7/16=1.543

Q: Iron ore is impure, Fe2O3. When Fe2O3 is heated with an excess of carbon (coke), metallic iron and…

A: Mass of sample=938 gMass of Iron obtained=523 gmass % of Fe2O3=?

Q: Using the information from number 4, calculate the empirical and molecular formula for the scenario…

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Q: An oxide of iron is 69.94% iron by mass; the rest is oxygen. Determine the empirical formula of this…

A: Given : Mass percent of iron = 69.94 %  And the compound contains only iron and oxygen. Since mass…

Q: If an oxide of magnesium is 40% oxygen by mass, what is its empirical formula?

A: here, we have to calculate the empherical formula of oxide of Magnesium. we know the molar masses,…

Q: the empirical formula of th

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Q: A sample of a pure compound contains 68.4% chromium and 31.6% oxygen by mass. What is the empirical…

A: Let the mass of the pure compound be 100 g. Thus, mass of chromium in the compound is = 68.4 % x 100…

Q: A sample is found to contain 66.8 % NaHCO, by mass. What is the mass of NaHCO, in 4.25 g of the…

A: Mass by mass percentage (w/w) When mass of solute in a solution is expressed in grams of solute in…

Q: e percentage yield of the product is:

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Q: The empirical formula for C6H13 is-

A: an empirical formula is the chemical formula of a compound that gives the proportions of elements…

Q: A comppound has the following percentages by mass :copper 33.88%,nitrogen…

A: Given,  The percentages by mass : Copper (Cu) = 33.88%,                        Nitrogen (N)=14.94%,…

Q: Annie states that the molecular and empirical formulas for water are the same. Please explain…

A: Yes I agree about this, any states ( whether it is solid, liquid or gas ) for water Molecular…

Q: A compound contains 72% magnesium and 28% nitrogen. What is its empirical formula?

A: 1)  Compound contains 78 % Mg and 28 % N2 Atomic masses of Mg and Nitrogen = 24 and 14        Hence,…

Q: The percent composition by mass of an unknown compound with a molecular mass of 150.13 u is 40.002%…

A: NOTE : You have forgot to mention O in the percent for 53.284 %. Hence I'm assuming it to be O and…

Q: Mass % of I in strontium periodate

A: Mass % of an element in a compound  is the ratio of mass of element to the total mass of the…

Q: in 17.83 moles of carbon dioxide?

A: Molar mass(MM) of CO2 = 12 + 2×16 = 32 g Moles = mass/MM Mass = moles × MM   = 17.83×44 = 784.5 g

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.